In book two of the House of Robots series, its bot brains versus bot brawn in an all-out war! Sammy Hayes-Rodriguez and his bro-bot E are making new friends every day as E works as his bedridden sister Maddies school proxy. But disaster strikes when E malfunctions just in time to be upstaged by the super-cool new robot on the block - and loses his ability to help Maddie. Now its up to Sammy to figure out whats wrong with E and save his family!